E X AM 1 I F O R M AT I O N
Exam Time, Place, Format, and Rules
The exam will take place on Thursday, 02/20, in room Chem 101 from 6:00 PM to 8:30 PM. We will go to
the lab after the exam! The exam will have two par
NAMES AND SYMBOLS OF 47 MOST COMMON ELEMENTS
(molecular forms are shown in parentheses)
Ten elements whose symbols are the first letter of the name:
1. (5 points) Provide a term or a name that matches each of the word descriptions below.
The mass of one mole of a chemical substance.
The average mass of all atoms of a particular element
found in nature.
CHEM 1A Quiz 2 (20 points)
1. (4 points) Define the following three terms.
u vvt b er ocfw_ fYO fon.,.j
of ~ t1 u ~ h-e.rs
tn Ci'r7 alon1,
a lo;-v; ,
p rofon .
1. (6 points) Provide a term or a name that matches each of the word descriptions below.
The part of the universe chosen for study.
,y sf e fY1
The energy associated with position.
The energy tra
ArJsw.e.r l<'e y
1. (3 points) Define the term standard enthalpy offormation.
TILe en -1 /,c. j. '/ chan!"'ocfw_
-ft._.,_ j;Jr n-u;:.hon cfw_M-a-lof -1~ rea c/,'oy; of synlhx_ s/s) vf' ovu_ vu_o/e_ of a_
E X AM 2 I F O R M AT I O N
Exam Time, Place, Format, and Rules
The exam will take place on Thursday, 04/10, in room Chem 101 from 6:00 PM to 8:30 PM. We will go to the
lab after the exam! The exam will have two par
Naming Inorganic Compounds
(= ionic compound)
Group I or II;
Al, Ag, Zn, NH4?
(= covalent compound)
O is present,
but not H2O or
Type I Ionic
Type II Ionic
A w-e.r k:e I
1. (5 points) Answer the multiple-choice questions on chemical bonding from the
supplementary sheets. Record your answers (A, B, C, D, or E) in the table below.
CHEM 1A Quiz 1 (20 points)
1. (5 points) Each of the two boxes below schematically represents a sample of matter. For
each of them, fill the blanks in the corresponding column.
;,-z(L. d +<f~
Physical state (gas, liquid, solid)?
CHEM 1A Exam 1
Open-End Questions and Problems
Please read the following. To receive full credit for a question or a problem, in addition to the
correct answer, you must show a neat, complete, and logical method of so
LEWIS STRUCTURES AND MOLECULAR SHAPES
Lewis Structure (dashes
for bonding pair and dots
for lone pairs)
t xr. =
Amounts and Concentrations after a Reaction between Ions
A chemist combines 60.0 mL of 0.322 M potassium iodide with 20.0 mL of 0.530 M lead(II)
nitrate. (a) Write the full-formula, complete ionic, and net ionic equation (FFE, CIE, and NIE)
for the reacti
Understanding Lewis Structures for Molecules and Polyatomic Ions
Number of (per molecule or polyatomic ion)
Dots & Dashes Style
Name of Molecule
or Polyatomic Ion
ATOMS, ISOTOPES, ELEMENTS
FORMULAS AND NAMES OF BINARY COVALENT COMPOUNDS
Fill the blanks in the following table.
SIGNIFICANT DIGITS IN MEASURED AND EXACT QUANTITIES
Indicate whether each of the following is a measured or an exact quantity.
16 ounces in one pound
ATOMIC THEORY WORKSHEET
1. Which of the following statements of the atomic theory proposed by John Dalton at
the beginning of the 19th century are not quite true in light of modern atomic
physics? Rewrite each statement to reflect the current unde
From Laboratory Manual for Guinn and Brewers Essentials of General, Organic, and Biochemistry by Sara Selfe
STOICHIOMETRY AND THE CHEMICAL REACTION
You would be surprised at the number of chemical reactions you can do with common
household products. In fa
CHEM 1 A
Show your work. Each number in your calculation should be accompanied by an appropriate unit. The
final answer should be recorded with the correct number of significant digits.
1. Use the handout Densities of Some Common material